25 close calls on Pearson runways in 5 years, says safety board amid investigation

At least 25 close calls have happened on Pearson International Airport runways in the last five years, including another runway incursion this week, says the Transportation Safety Board.

The latest incident happened at roughly 6:35 p.m.on Monday and has prompted a TSB investigation, said EwanTasker, Ontario's regional manager of air investigations with the board.

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Republic Flight 3553, a regional United flight flying in from Newark, N.J.,was landing at Pearson, he said. The plane was cleared to land on Runway 24 Left an outer runway. After landing, the crew was told to not crossthe inner runway that's normally used for departures. At the same time,Air Canada Flight 878 was departing from the inner runway, en route to Zurich.

As the plane on runway 24 Left wasapproaching the inner runway line, Taskersaid the air traffic controller noticed they were going faster than normal and toldthem to stop, but the planewound up crossing the line into the protected area.

"If that incident happened in isolation, we probably wouldn't be launching a full investigation into it," Taskersaid. "But we've had this type of exact incident happen a whole bunch of timesrecently."

This marks the second similar incident at Pearson in less than a week. The TSB also deployed a team of investigators to the airport on Aug.9after another runway incursion.

The latest close call happened amid a broader TSB investigation into runway incursions between the parallel runways at the south complex of Pearson.

At least 25 runway incursions since June 2012

That investigation, launchedin May, is examining numerous incidentsthat have happened between runways 06 Left and 24 Right, and 06 Right and 24 Left, between June 2012 and June 2017.

Taskersaid in total, at least 25 runway incursions have happened at Pearson since June 2012.

"Eventually, one of them could be much more serious,"Taskersaid.

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Back inJune 2012, the Greater Toronto Airport Authority which operates Pearson wrapped upa previous investigation into runway incursions on the south complex ofthe airport, according to the TSB.

They found40occurrences of interest between2004 and the end of2011, of which 20were inner runway incursions.

"TheGTAAimplemented a runway incursion plan based on its findings, and completed the changes outlined in the plan at the end of2013," reads a summary from the TSB.

In a statement to CBC News, the GTAAsaid they are "fully cooperating" with the TSB'songoing review.

The changes made by the GTAA in 2013 included lighting, markings and signage improvements, and additional information for flight crews "to support situational awareness of runway incursion 'hot spots' at Toronto Pearson," coupled with an awareness campaign with the U.S. regional carriers.

"While these improvements have had a significant impact, incursions in this area continue and we'll be looking to mount this campaign again for continued awareness," the statement continued.

The GTAA will also be asking NAV Canada thecapital corporation that owns and operates Canada's civil air navigation service to meet and discuss ways to reduce incursions.

The TSB'songoing investigation is happening through the fall, and a final report will be made public after that.